Standing-Wave Free-Electron Laser Two-Beam Accelerator

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A free-electron laser (FEL) two-beam accelerator (TBA) is proposed, in which the FEL interaction takes place in a series of drive cavities, rather than in a waveguide. Each drive cavity is 'beat-coupled' to a section of the accelerating structure. This standing-wave TBA is investigated theoretically and numerically, with analyses included of microwave extraction, growth of the FEL signal through saturation, equilibrium longitudinal beam dynamics following saturation, and sensitivity of the microwave amplitude and phase to errors in current and energy. It is found that phase errors due to current jitter are substantially reduced from previous versions of the TBA. Analytic ... continued below

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Sessler, Andrew M.; Whittum, D.H.; Wurtele, Jonathan S.; Sharp, W.M. & Makowski, M.A. February 1, 1991.

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Description

A free-electron laser (FEL) two-beam accelerator (TBA) is proposed, in which the FEL interaction takes place in a series of drive cavities, rather than in a waveguide. Each drive cavity is 'beat-coupled' to a section of the accelerating structure. This standing-wave TBA is investigated theoretically and numerically, with analyses included of microwave extraction, growth of the FEL signal through saturation, equilibrium longitudinal beam dynamics following saturation, and sensitivity of the microwave amplitude and phase to errors in current and energy. It is found that phase errors due to current jitter are substantially reduced from previous versions of the TBA. Analytic scalings and numerical simulations are used to obtain an illustrative TBA parameter set.

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50

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  • Journal Name: Nuclear instruments and methods in physics research A; Journal Volume: 306; Journal Issue: 3; Related Information: Journal Publication Date: 1991

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  • Report No.: LBL-30418
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 937211
  • Archival Resource Key: ark:/67531/metadc894356

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Office of Scientific & Technical Information Technical Reports

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  • February 1, 1991

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  • Sept. 27, 2016, 1:39 a.m.

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  • Oct. 31, 2016, 11:50 a.m.

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Sessler, Andrew M.; Whittum, D.H.; Wurtele, Jonathan S.; Sharp, W.M. & Makowski, M.A. Standing-Wave Free-Electron Laser Two-Beam Accelerator, article, February 1, 1991; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc894356/: accessed September 24, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.